New Here....Very Confused

I have a 10-month old and we are ttc #2. I used a fertility monitor and I know we BD when I ovulated. I should have gotten AF on THursday( 14 days later), but didn't and I got 2 BFNs. I tried to look online and didn't find much. I was wondering if anyone had any ideas.

Hey Puppie,
I am new here too, actually this is my first reply to someone...I think you could very well be pregnant is you are normal every month, and the negative tests might mean there isnt enough HCG yet in your urine to detect a pregnancy by a HPT...but to be sure you should go get a blood test which would be pretty acurate by now....let me know how things go,